B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
49%
49% -- reply rate boost for cold email follow-ups (2025)
The first follow-up email increases reply rates by 49%.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
49%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
outreachalmanac.com
Primary
Tier C
https://outreachalmanac.com/guides/10-million-cold-emails-lessons/ ↗
Source Article
10 Million Cold Emails Later: The Comprehensive Cold Outreach Playbook | Outreach Almanac
What separates cold email practitioners who generate consistent pipeline from those who struggle in spam folders? After analyzing campaigns totaling over 10 million cold emails sent across dozens of clients, clear patterns emerge that define success in modern outbound.
This guide consolidates hard-w…
Original Research
outreachalmanac.com
· Original study ↗
Methodology
Cited from broader research on email sequences
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
cold email follow-ups: 49% reply rate boost. Source: outreachalmanac.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/first-follow-up-reply-boost-49
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<blockquote cite="https://lighthousedata.io/data/first-follow-up-reply-boost-49" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>49%</strong> -- reply rate boost for cold email follow-ups<br><small>Source: outreachalmanac.com (2025) · <a href="https://lighthousedata.io/data/first-follow-up-reply-boost-49" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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